This is a Quake 1 post-processing effect which intends to emulate lower resolution and reduced color palette.
This mod is for those who want a more "authentic" retro experience.
See high resolution before and after.
- Obtain a retail version of Quake 1.
- Download the darkplaces engine.
- Copy the Id1 directory from the retail Quake folder into the extracted darkplaces engine directory.
- Place the contents of this repos id1 into the Id1 directory.
- Start darkplaces and enjoy.
To change the resolution and color pallete, open the Quake console from within the game using the ~ (tilda) key.
Enter the following command with whatever c (color range per-channel), w (emulated width), and h (emulated height) values you want.
r_glsl_postprocess_uservec1 "c w h 0"
So, for example, if you want to emulate 320x240 resolution with 25 colors per-channel, you would enter:
r_glsl_postprocess_uservec1 "25 320 240 0"
You can toggle the effect at any time by entering: r_glsl_postprocess 1 to enable and r_glsl_postprocess 0 to disable.